You are right, Brighton deserves the winning but they were unlucky. I admire their pattern of football based on their passes and bond. Manchester united is suffering from injured players that plays vital role in the club. They lack a good midfielder,it was luck that was on their side which made them to win the game through PK. I don't think that united will be able to win this trophy,because they will be playing with the strongest club this season . Man City is in their super form and wouldn't take this match for granted. Gadiuola will a tough one on ETH. Will luck also favour united on that day ? I guess no.
I too liked Brightons gameplay. They were coordinated with their passes and tried to retain the ball in their possession and it showed with the general statistics on ball possession. Like you noted, Manchester United has some players missing from the squad cause of injuries.
With penalties, it’s difficult to predict a winner as it could go either way. So I guess Manchester United was lucky to have won the game on penalties. Having qualified for the final, they’re to face Manchester City. Now, both teams on paper would seem to be evenly matched but with Manchester United’s current form, I think they’re no match for Man City. I wish Man United well but I just don’t see them winning the game. Man City is out to grab and win as much trophies as they can.